Coking-oven.



No. 722-,982. PATENTED MAR. 17, 1903.

L. J. HIRT.

GOKING OVEN.

APPLICATION FILED JAN. 3, 1903.

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No. 722,982. PATENTEDMAR. 17, 1903..

' L. J. HIRT.

GOKING OVEN.

APPLICATION FILED JAN. 3, 1903.-

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No. 722,982. PATENTED MAR. 17, 1903. L. J. HIRT.

UOKING OVEN.

APPLICATION FILED JAN. 3, 1903.

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UNITED STATES ATENT Grams.

LOUIS J. HIR'I, OF BROOKLINE, MASSACHUSETTS.

COKlNG-OVEN.

SPECIFICATION formingpart of Letters Patent N0. 722,982, dated March 17, 1903.

Application filed January 3,1903. Serial No. 137,631. (No model.)

To a. whom it may concern.-

Be it known that I, LOUIS J. HIRT, a citizen of the United States, residing in Brookline, in

the county of Norfolk and State of Massachusetts, have invented an Improvement in Coking-Ovens,of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a coking-oven wherein the process of coking a plurality of grades or kinds of coal may be simultaneously carried on without interfering one with the other or wherein a single grade or kind of coal may be coked. For this purpose the coking-oven is provided with a plurality of retorts or chambers which communicate at their upper ends with a gas-outlet passage or flue separated from the coking-chambers, except as to the gas-outlet ports, by a wall of refractory material, which serves to prevent the gas in the passage from being influenced by the heat of the coking-chambers to such extent as would destroy the light hydrocarbons. The gas-outlet passage or flue referred to may be designated the main outlet-passage and has communicating with it a second gas-outlet flue or passage,which may be placed in communication with one or more of the coking-chambers by means of one or more valves in the main outlet-passage, so that a rich kind or grade of coal in one or more of the coking-chambers and a poorer grade or kind in the other of said coking-chambers maybe coked simultaneously, and the richer gases may be carried off through the main fiue or passage and utilized for illuminating or for other purposes and the poorer gases may be carried ofi through the second outletpassage and utilized for heating the ovens or coking chambers or for other purposes. These and other features of this invention will be pointed out in the claims at the end of this specification.

Figure 1 represents in vertical longitudinal section a coking oven embodying this invention, the section being taken on the line 1 1, Fig. 3; Fig. 2, a horizontal section on the line 2 2, Fig. 1; Fig. 3, a vertical transverse section on the line 3 3, Fig. 1; Fig. 4, a vertical transverse section on the line 4 4, Fig. 5,

through the front wall of the coking-oven; and Fig. 5, a vertical longitudinal section on the line 5 5, Fig. 3.

In the present instance the invention is shown as embodied in a coking-oven provided with four vertically-arranged coking-chambers a b o d, (see Fig. 1,) formed by transverse vertically-arranged partitions e, of fire-brick or other refractory material. The cokingchambers a b c d are provided with a top wall f of fire-brick or other refractory material, which has suitable ports or openings 9 for the passage of coal or other fuel into the chambers and for the passage of the gases created in the coking process out of the coking-chambers and into a main gas passage or flue h, extended longitudinally of the oven above the cokingchambers and below the top wall t' of the oven. The top wall t' is provided with suitable openings j for the passage of coal or material to be coked into the coking-chambers, which openin gs are normally closed by suitable covers it. The flue or passage h communicates at one end with a gas-outlet pipe Z, leading to the outside of the coking-oven, and also is connected near its other end by a passage m (see Fig. 2) with a secondary or companion flue n within the oven and herein shown as substantially parallel to the flue or passage h. The flue or passage his provided with one or more dampers or valves 0, which are accessible from outside the oven and are adapted to cut off communication between one or more of the coking-chambers and the main flue or passage 72. In the present instance the flue h is represented as provided With a single valve 0, located between the chambers b 0, so that when closed the chambers ct b communicate with the flue h and the chambers c d communicate with the flue n. It will thus be seen that a rich grade of coal or other material may be coked in the chambers or b, and the rich gases driven oft may be conducted outside of the oven through the pipe Z- to the usual receptacles and utilized for illuminating or other purposes, while at the same time a poorer grade or kind of coal or other material may be coked in the chambers c d, and the gases driven ofi may be conducted through a portion of the flue h and passage m into the flue n, from which the said gases may be led into the heating fines or passages 19 at the sides of the chambers and extended longitudinally of the oven. The flue or passage it may also be connected at its front end with the heating fines or passages 19. In the present instance both fines h 'n are shown as connected by downwardly-extended passages 10 12 in the front wall of the oven with a transverselyextended passage 13, from which lead substantially vertical lines or passages 14 15, which communicate at one or more points with the heating fines or passages 19 on opposite sides of the coking-chambers. As represented herein, the vertical flues 14 15 communicate at two points 16 17 (see Fig. 5) with the heating-fines 10, each of which, as shown, is composed of a series of superimposed passages connected at their opposite ends to form a continuous passage which communicates at its lower end with the atmosphere and at its upper end with the chimney or stack 18.

The secondary on tlet flue or passage n may and preferably will be provided with an outlet-pipe 20, which leads to the outside of the oven and to the gasometer or other receptacle, so that if desired the ovens c (1 may be used for coking rich coal or other fuel while, for instance, the chambers a. b are not in use, or, if desired, while they are in use.

Communication between the fines h n and the heating-fluesp may be effected by suitable valves or dampers, (not shown,) which are accessible from outside the oven. The heating-flues 19 may be provided with suitable peek holes or openings 24, which may be normally closed by a brick or in any other suitable manner.

In the present instance the oven proper is shown as supported upon I-beams 26, which rest upon metal columns 27.

The lower part of each coking-chamber may be made of metal, and this metal portion projects below the side walls of the oven and is provided with rocking fingers or bars 28 29, which are fast on shafts 30 31, having on them worm-gears 32 33, (indicated by dotted lines, Fig. 3,) which gears mesh with suitable worms on a shaft 35, provided with a hand-wheel 36, by which the worm-shaft may be turned to cause the rocking fingers to cocupya substantially horizontal position across the lower portion of the coking-chamber, and thereby support the portion of the material above them while the portion of the coke below them is heing discharged through the outlet in the bottom of the metal extension of the coking-chamber, which outlet is normally closed by a door or valve 40, attached to a lever 41, pivoted at 42 and having its free end adapted to engage a hook or latch 43, which is pivoted at 44. The latch has pivoted to it a handle 45, provided with a cam 46, by which is provided outside the extension with a suitable wheel or handle by which the shaft 51 may be rocked, so as to cause the fingers or arms 50 to pinch the coke and support it While a small portion is being discharged, so as to afiord opportunity for the coke to expand.

The particular mechanism for supporting the partially-coked material while the portion which is coked and cooled is not herein claimed, as it forms the snbject-matter of another application, Serial No. 137,630, filed by me January 3, 1903.

I claim 1. In a coking-oven, in combination, a plurality of vertically-arranged coking-chambers, a main' flue or passage located above said coking chambers and communicating therewith, an auxiliary fine or passage communicating with the said main flue, and means to close the main flue intermediate said coking-chambers, for the purpose specified.

2. In a coking-oven, in combination, a plurality of vertically-arranged cokingchambers, a main flue or passage located above said coking-chambers, ports connecting said fine with said chambers, fuel-inlets in the top of the oven substantially in line with said ports, an auxiliary flue communicating with said main flue, and a valve to close the main flue intermediate said coking-chambers, substantially as described.

3. In a coking-oven, in combination, a plurality of vertically-arranged coking-chambers, heating dues or passages on opposite sides of said coking-chambers, a main flue communicating with the said coking-chambers, and with the exterior of said oven, an auxiliary flue or passage connected with said main fine or passage and with said heatingfiues, and a valve to close said main flue intermediate said coking-chambers, substantially as described.

4. In a coking-oven, in combination, a pinrality of coking-chambers, a main gas-outlet flue or passage communicating with said coking-chambers, an auxiliary gas-outlet flue connected to said main gas-outlet flue, and a valve to close said main flue intermediate said coking-chambers, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LOUIS J. HIRT.

Witnesses:

J AS. H. CHURCHILL, J. MURPHY. 

